The OSPF protocol is very important for the use of Cisco routers. But how do I perform specific operations? The following article will give a detailed explanation.
OSPF protocol operation:
1. the ROUTER that declares OSPF sends a HELLO message from all interfaces that start the OSPF protocol. The two routers share a Public Data Link and can negotiate with each other the parameters specified in their HELLO p
Experiment Name: Cisco router network address translation (NAT)Experimental purpose: To achieve all intranet IP to use a small number of public IP network connection to the InternetExperiment Introduction:With the help of NAT technology, when the intranet private address sends packets to the router, the private address is converted to a legitimate public IP addre
supports SSH. log on to your vro or vswitch and check whether you have loaded an IPSec IOS image that supports SSH.
In our example, we will use the Cisco IOS command. Run the following command:
Router> Show flash
This command displays the name of the loaded IOS image. You can use the result to compare the list of supported features of your supplier.
After you verify that your device supports SSH, make sure
This article describes in detail how to understand the technology of Cisco routers in terms of basic network equipment issues, regular system upgrades, and the use of Cisco routers. I believe you will be helpful after reading it.
These two tools enable communication between devices connected to the network and other networks. Although vrouters and vswitches look very similar, they have different functions i
1. Password Recovery Principle
1) The Cisco router stores several different configuration parameters and stores them in different memory modules. The memory of Cisco Series routers includes ROM, Flash memory, RAM, immutable RAM, and Dynamic memory DRAM. See table 1 ). Generally, when a vrodram starts, it first runs the program in ROM, conducts system self-check
configure the authorization of HSRP4. router (config-if) # standby 47 ip time 2 9 2 represents the HELLO time, 9 represents the retention time5. router (config) # interface s06. router (config-if) # standby 47 track s0 100 configure tracking port s0 and reduce port down by 1007. router # show standby brief view the HS
The rapid development of wireless networks has also promoted the wide application of wireless routers. At present, the market demand is also very high. Here we recommend a Cisco wireless router, cisco's Linksys wireless products have always maintained Cisco's high quality. As a result, this WRT54GC Cisco Wireless Router
ExploitationScriptConfigureCisco router configurationBefore that, you must specify the operations you want to perform, execute those commands, and then write scripts. I want to back up the running-configure configuration. Of course, the device has been configured and the tftp server is ready. The Cisco router configuration is as follows:
BT Wireless Network crac
I want to introduce a Cisco router simulation program to you today. I hope that a friend who is looking for software can take a look at this article to avoid some unsuitable factors after you download it. Software type: domestic software, authorization method: Shared Software, interface language: Simplified Chinese, Software size: 32.5 MB, file type :. exe, running environment: Win2003, WinXP, Win2000, Win9
Maybe many people do not know the actual application of the NetEye firewall and the Cisco router. Next we mainly analyze the security problems of the NetEye firewall and the Cisco router. Firewall has become a key part of enterprise network construction. However, many users think that there are already routers in the n
Introduction to CISCO router AAA and related routing configuration cisco aaa www.2cto.com 3A concept: authentication authorization Accounting accountingcisco provides a variety of 3A services for routers and switches: 1. Self-contained AAA router/NAS self-contained AAA service NAS (Network Access Server) 2. Contact the
and a switch are connected with the console lineHow it works: Switch password recovery fundamentals: Change the Config.text file name in the switch to a different file name, and then enter the configuration mode to change the password, and finally restore the Config.text file nameSteps:1. Power off first2. Power off while holding down the mode key on the switch until the display light on the switch is no longer flashing (5~10s), then release3. At this point, enterSwitch:flash_init (Initialize F
CISCO PT Simulation Experiment (12) configuration of router static routesExperimental Purpose : Master the configuration method and application of static routeMastering Route descriptions in the routing tableFamiliar with the principle and process of Routing and Packet forwardingExperimental Background :In addition to the headquarters of a company, there is another branch, and there is a separate LAN, in o
For common users, it is necessary to learn how to back up the Cisco router configuration file to ensure the security of our routers. In recent years, many cities have established urban financial networks. The construction of these networks has promoted the construction of electronic finance in various regions. Vro is a key device of the city financial network and a bridge to the computer network. It can not
Using the Cisco router configuration can easily implement VoIP, So I studied the statements related to the Cisco router configuration and shared them here, hoping to be useful to everyone. VoIPVoice over IP) is a technology that transmits voice over the Internet. It has grown with the development of Internet technology
When a Cisco router forgets or loses the enable password, there are two ways to recover, depending on which series of routers you are using.
The first of these methods
This approach restores the following routers: Cisco 2000 series, 2500 series, 3000 series, Cisco 4000 series using the 680x0 Motorola CPU, and 10.0 se
Cisco router configuration manual Virtual LAN (VLAN) routing 1. The main network technology we currently use when constructing an enterprise network is generally based on exchange and virtual networks. The exchange technology changes shared media to exclusive media, greatly improving the network speed. The Virtual Network Technology breaks the restrictions of the geographical environment. without changing t
Cisco router has become a commonly used network device, but we are not very clear about its storage classification. Here we will introduce it in detail.
Memory category:
1: RAM: Random Access to memory, equivalent to computer memory
2: ROM: read-only memory. Some microcodes used to start and maintain the router are resident in the ROM.
3: FLASH Memory, equiva
: single two-way authentication: www.2cto.com 2.2, CHAP authentication: CHAP: Challenge Handshake Authentication Protocol, full name: challenge Handshake Authentication Protocol. CHAP verifies the identity of the authenticated end through a three-way handshake. It is completed when the initial link is established. To improve security, it is periodically verified after the link is established. CHAP is safer than PAP because CHAP does not send plain text online, but instead sends a random number s
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